Live From Paris 2024: NBC's IBC Presence Takes ST 2110 to New Heights Smaller footprint doesn't mean less power as Paris presence serves as tech hub By Ken Kerschbaumer, Editorial Director Tuesday, July 30, 2024 - 1:18 pm
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NBC's footprint for the Paris Olympics is 3,400 sq. meters, down from 5,500 sq. meters for the Tokyo 2020 Olympics. But the broadcaster packs a lot of firepower into that smaller footprint, a place that Todd Donovan, VP, engineering and technology planning, NBC Sports and Olympics calls NBC's Forward Operating Base.
NBC Olympics' Broadcast Operations Control (BOC) in Paris is the hub for all the signals transmitted across the Atlantic for final production in Stamford.
It's where everybody gets provisioned and deals with things like Games event management, logistics, and food, but it is also our technical hub, Donovan explains. [At its heart is] our Broadcast Operations Control, and the BOC has a big function for these Games: it collects more than 80 world feeds from OBS.
At the BOC, the engineering team can monitor not only the OBS feeds but many of the incoming feeds from NBC efforts at the various venues and studios. All of that is going back across our network to our broadcast facility in Stamford, says Donovan, and everything is recorded there.
For the first time ever, those feeds - everything from event coverage to highlights, beauty camera shots, and more - are taken in by NBC Olympics via a SMPTE ST 2110 stream.
Normally, we would take them in over 12-Gbps optical, he says, and it would be more SDI, video-ish' style. But now it's 2110 streaming media, and it comes at us as a multicast. We're catching that multicast at 4K UHD and converting it to 1080p50 HDR.
At the core of that transport is a Cisco fabric with a Grass Valley routing-control layer. A Lawo VSM system is used for panel presentation at the IBC. (In Stamford, CT, that operation has moved over to EVS Cerebrum).
Making the move fully to ST 2110 paid dividends when it came to setup. When you are the forward operating base, says Donovan, you need to throw things together relatively quickly, and an IP-based environment goes together faster [than an SDI environment]. It means fewer physical cables because fiber carries many more signals. It is also remarkably reliable and scales better. You can have the router very easily do 1080p, 1080i, 4K, HDR or SDR. If it is properly provisioned, it doesn't care [what the signal is].
The trick in going to ST 2110 is accepting that, although you will save time pulling cables and fabricating connectors, you also need to have the staff on board to handle IP configuration.
The elegance of ST 2110, Donovan explains, is that there are consoles with only a couple of fibers going to it and they can feed a whole host of devices. If somebody wants to add something, like a monitor, we don't need to have firefighters standing by to pull a battery of cables from the equipment room; it's just one more port on an endpoint card.
One of two racks that serve as the interconnect between OBS and NBC operations
NBC is taking the 1080i SDR feed as a backup to upconvert to 1080p50 in the event of a failure.
Stamford will get what they're expecting all the time, which is 1080p50 HDR, he says. We do that by handing off the signals to Media Links as part of our AT&T agreement. They handle international transmission to America via two 100-gig circuits that are protected, so it's more like 400 Gbps. We have two other 10-Gbps circuits also protected to go across the ocean.
Located next door to that massive video wall is a small shading area, which is new for this Olympics. About 18 cameras are shaded there: cameras used at the smaller venues, by unilateral crews, at the mixed zones, or in the insert studio at the IBC. NBC cameras at large, A-level venues - swimming, athletics, gymnastics - as well as at the four Trocad ro studios are shaded in the trucks at those venues.
We have great video guys at the IBC with great eyes looking at great scopes in ideal conditions, notes Donovan. Being part of the BOC, they have situational awareness as to what's going on.
One area of the facility that shows the impact of IP and the move to next-generation technologies is the main equipment room, which is located next to the room where Aggreko provides technical power with NBC-owned uninterruptible power-conditioning units. In the equipment room, NBC's RIB (Racks in a Box) units house the hardware behind the control surfaces throughout the IBC, including the fiber platform, the brains of the IP router, standards converters, media management, and file transfers. Two racks called Meet Me Rack One and Two are demarcation points between the OBS optical connections and the NBC infrastructure. Previously converted to electrical connections, the optical path is maintained into Grass Valley XIP cards.
That was what we envisioned when we conceived this a long time ago, Donovan explains. It spits out into our ST 2110 environment with all the frame-syncing and channel=mapping capabilities it is supposed to have. We did a test with OBS in Madrid in October to make sure that it worked.
Getting Up and Running As with every Olympics, getting the IBC planned, set up, and running was a multi-year effort. OBS took over the building on Jan. 1 and begin putting up the wall systems, ceilings, and other infrastructure and design elements.
We submitted our final plans about six months prior to that, says Donovan. This hall is brand new with modern, sustainably built infrastructure and much higher base-building ceilings than the other halls.
NBC took delivery of the building in mid May and, by the end of the month, had created a beachhead. The process was about putting the furniture in place
